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Meeting Abstract

Dynamic shaping of memory representations by physiological and cognitive processes

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Brodt,  S
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Brodt, S., & Schönauer, M. (2021). Dynamic shaping of memory representations by physiological and cognitive processes. In Psychologie und Gehirn (PuG 2021) (pp. 51).


Cite as: http://hdl.handle.net/21.11116/0000-0009-5966-1
Abstract
Not only do our memories shape how we perceive and interact with the world, they themselves are influenced by many factors, both internal and external. Innovative experimental designs, analysis approaches and human neuroimaging methods allow us to investigate the dynamics of how memory representations evolve and change in bilateral interaction with other cognitive and physiological processes. In this symposium, we present data from five labs, each focusing on different modulators of internal representations. We will first highlight physiological determinants of hippocampal function in ageing, based on data from various neuroimaging modalities. To these ends, we will show how differences in hippocampal vascularization patterns impact memory and cognitive functioning. Moreover, we will present data showing that Alzheimer’s disease pathology differentially affects object and scene memory. Secondly, we will discuss how episodic simulation can shape real-life attitudes: mentally associating existing memory representations can lead to a transfer of affective valence to a previously neutral stimulus, resulting in both behavioral and physiological changes. Finally, we will focus on cognitive factors that support the emergence of neocortical memory representations. A first contribution leverages multivariate pattern analysis to show how the neocortex is able to rapidly acquire content-specific representations through repeated rehearsal. We will also present data on how sleep supports neocortical memory formation by shifting subcortical contributions to mnemonic processing during retrieval.